diff options
| author | James Hogan <james.hogan@imgtec.com> | 2013-06-20 10:26:27 +0100 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2013-06-24 17:21:38 +0200 |
| commit | d5025f9f535108ba44c7f00573a2a34c18a3ea2b (patch) | |
| tree | f8513b851c443ad20d06452c4a4934c1336010a3 | |
| parent | b94089751af310ce267ec6301f91ac84db4d8168 (diff) | |
pinctrl-tz1090: add TZ1090 pinctrl driver
Add a pin control driver for the main pins on the TZ1090 SoC. This
doesn't include the low-power pins as they're controlled separately via
the Powerdown Controller (PDC) registers.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Rob Landley <rob@landley.net>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-doc@vger.kernel.org
Cc: devicetree-discuss@lists.ozlabs.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| -rw-r--r-- | Documentation/devicetree/bindings/pinctrl/img,tz1090-pinctrl.txt | 232 | ||||
| -rw-r--r-- | drivers/pinctrl/Kconfig | 6 | ||||
| -rw-r--r-- | drivers/pinctrl/Makefile | 1 | ||||
| -rw-r--r-- | drivers/pinctrl/pinctrl-tz1090.c | 2077 |
4 files changed, 2316 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/pinctrl/img,tz1090-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/img,tz1090-pinctrl.txt new file mode 100644 index 00000000000..39bfd9cd6bb --- /dev/null +++ b/Documentation/devicetree/bindings/pinctrl/img,tz1090-pinctrl.txt @@ -0,0 +1,232 @@ +ImgTec TZ1090 pin controller + +Required properties: +- compatible: "img,tz1090-pinctrl" +- reg: Should contain the register physical address and length of the pad + configuration registers (CR_PADS_* and CR_IF_CTL0). + +Please refer to pinctrl-bindings.txt in this directory for details of the +common pinctrl bindings used by client devices, including the meaning of the +phrase "pin configuration node". + +TZ1090's pin configuration nodes act as a container for an abitrary number of +subnodes. Each of these subnodes represents some desired configuration for a +pin, a group, or a list of pins or groups. This configuration can include the +mux function to select on those pin(s)/group(s), and various pin configuration +parameters, such as pull-up, drive strength, etc. + +The name of each subnode is not important; all subnodes should be enumerated +and processed purely based on their content. + +Each subnode only affects those parameters that are explicitly listed. In +other words, a subnode that lists a mux function but no pin configuration +parameters implies no information about any pin configuration parameters. +Similarly, a pin subnode that describes a pullup parameter implies no +information about e.g. the mux function. For this reason, even seemingly boolean +values are actually tristates in this binding: unspecified, off, or on. +Unspecified is represented as an absent property, and off/on are represented as +integer values 0 and 1. + +Required subnode-properties: +- tz1090,pins : An array of strings. Each string contains the name of a pin or + group. Valid values for these names are listed below. + +Optional subnode-properties: +- tz1090,function: A string containing the name of the function to mux to the + pin or group. Valid values for function names are listed below, including + which pingroups can be muxed to them. +- supported generic pinconfig properties (for further details see + Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt): + - bias-disable + - bias-high-impedance + - bias-bus-hold + - bias-pull-up + - bias-pull-down + - input-schmitt-enable + - input-schmitt-disable + - slew-rate: Integer, control slew rate of pins. + 0: slow (half frequency) + 1: fast + - drive-strength: Integer, control drive strength of pins in mA. + 2: 2mA + 4: 4mA + 8: 8mA + 12: 12mA + + +Note that many of these properties are only valid for certain specific pins +or groups. See the TZ1090 TRM for complete details regarding which groups +support which functionality. The Linux pinctrl driver may also be a useful +reference. + +Valid values for pin and group names are: + + gpio pins: + + These all support bias-high-impediance, bias-pull-up, bias-pull-down, and + bias-bus-hold (which can also be provided to any of the groups below to set + it for all pins in that group). + + They also all support the some form of muxing. Any pins which are contained + in one of the mux groups (see below) can be muxed only to the functions + supported by the mux group. All other pins can be muxed to the "perip" + function which which enables them with their intended peripheral. + + Different pins in the same mux group cannot be muxed to different functions, + however it is possible to mux only a subset of the pins in a mux group to a + particular function and leave the remaining pins unmuxed. This is useful if + the board connects certain pins in a group to other devices to be controlled + by GPIO, and you don't want the usual peripheral to have any control of the + pin. + + ant_sel0, ant_sel1, gain0, gain1, gain2, gain3, gain4, gain5, gain6, gain7, + i2s_bclk_out, i2s_din, i2s_dout0, i2s_dout1, i2s_dout2, i2s_lrclk_out, + i2s_mclk, pa_on, pdm_a, pdm_b, pdm_c, pdm_d, pll_on, rx_hp, rx_on, + scb0_sclk, scb0_sdat, scb1_sclk, scb1_sdat, scb2_sclk, scb2_sdat, sdh_cd, + sdh_clk_in, sdh_wp, sdio_clk, sdio_cmd, sdio_d0, sdio_d1, sdio_d2, sdio_d3, + spi0_cs0, spi0_cs1, spi0_cs2, spi0_din, spi0_dout, spi0_mclk, spi1_cs0, + spi1_cs1, spi1_cs2, spi1_din, spi1_dout, spi1_mclk, tft_blank_ls, tft_blue0, + tft_blue1, tft_blue2, tft_blue3, tft_blue4, tft_blue5, tft_blue6, tft_blue7, + tft_green0, tft_green1, tft_green2, tft_green3, tft_green4, tft_green5, + tft_green6, tft_green7, tft_hsync_nr, tft_panelclk, tft_pwrsave, tft_red0, + tft_red1, tft_red2, tft_red3, tft_red4, tft_red5, tft_red6, tft_red7, + tft_vd12acb, tft_vdden_gd, tft_vsync_ns, tx_on, uart0_cts, uart0_rts, + uart0_rxd, uart0_txd, uart1_rxd, uart1_txd. + + bias-high-impediance: supported. + bias-pull-up: supported. + bias-pull-down: supported. + bias-bus-hold: supported. + function: perip or those supported by pin's mux group. + + other pins: + + These other pins are part of various pin groups below, but can't be + controlled as GPIOs. They do however support bias-high-impediance, + bias-pull-up, bias-pull-down, and bias-bus-hold (which can also be provided + to any of the groups below to set it for all pins in that group). + + clk_out0, clk_out1, tck, tdi, tdo, tms, trst. + + bias-high-impediance: supported. + bias-pull-up: supported. + bias-pull-down: supported. + bias-bus-hold: supported. + + mux groups: + + These all support function, and some support drive configs. + + afe + pins: tx_on, rx_on, pll_on, pa_on, rx_hp, ant_sel0, + ant_sel1, gain0, gain1, gain2, gain3, gain4, + gain5, gain6, gain7. + function: afe, ts_out_0. + input-schmitt-enable: supported. + input-schmitt-disable: supported. + slew-rate: supported. + drive-strength: supported. + pdm_d + pins: pdm_d. + function: pdm_dac, usb_vbus. + sdh + pins: sdh_cd, sdh_wp, sdh_clk_in. + function: sdh, sdio. + sdio + pins: sdio_clk, sdio_cmd, sdio_d0, sdio_d1, sdio_d2, + sdio_d3. + function: sdio, sdh. + spi1_cs2 + pins: spi1_cs2. + function: spi1_cs2, usb_vbus. + tft + pins: tft_red0, tft_red1, tft_red2, tft_red3, + tft_red4, tft_red5, tft_red6, tft_red7, + tft_green0, tft_green1, tft_green2, tft_green3, + tft_green4, tft_green5, tft_green6, tft_green7, + tft_blue0, tft_blue1, tft_blue2, tft_blue3, + tft_blue4, tft_blue5, tft_blue6, tft_blue7, + tft_vdden_gd, tft_panelclk, tft_blank_ls, + tft_vsync_ns, tft_hsync_nr, tft_vd12acb, + tft_pwrsave. + function: tft, ext_dac, not_iqadc_stb, iqdac_stb, ts_out_1, + lcd_trace, phy_ringosc. + input-schmitt-enable: supported. + input-schmitt-disable: supported. + slew-rate: supported. + drive-strength: supported. + + drive groups: + + These all support input-schmitt-enable, input-schmitt-disable, slew-rate, + and drive-strength. + + jtag + pins: tck, trst, tdi, tdo, tms. + scb1 + pins: scb1_sdat, scb1_sclk. + scb2 + pins: scb2_sdat, scb2_sclk. + spi0 + pins: spi0_mclk, spi0_cs0, spi0_cs1, spi0_cs2, spi0_dout, spi0_din. + spi1 + pins: spi1_mclk, spi1_cs0, spi1_cs1, spi1_cs2, spi1_dout, spi1_din. + uart + pins: uart0_txd, uart0_rxd, uart0_rts, uart0_cts, + uart1_txd, uart1_rxd. + drive_i2s + pins: clk_out1, i2s_din, i2s_dout0, i2s_dout1, i2s_dout2, + i2s_lrclk_out, i2s_bclk_out, i2s_mclk. + drive_pdm + pins: clk_out0, pdm_b, pdm_a. + drive_scb0 + pins: scb0_sclk, scb0_sdat, pdm_d, pdm_c. + drive_sdio + pins: sdio_clk, sdio_cmd, sdio_d0, sdio_d1, sdio_d2, sdio_d3, + sdh_wp, sdh_cd, sdh_clk_in. + + convenience groups: + + These are just convenient groupings of pins and don't support any drive + configs. + + uart0 + pins: uart0_cts, uart0_rts, uart0_rxd, uart0_txd. + uart1 + pins: uart1_rxd, uart1_txd. + scb0 + pins: scb0_sclk, scb0_sdat. + i2s + pins: i2s_bclk_out, i2s_din, i2s_dout0, i2s_dout1, i2s_dout2, + i2s_lrclk_out, i2s_mclk. + +Example: + + pinctrl: pinctrl@02005800 { + #gpio-range-cells = <3>; + compatible = "img,tz1090-pinctrl"; + reg = <0x02005800 0xe4>; + }; + +Example board file extract: + + &pinctrl { + uart0_default: uart0 { + uart0_cfg { + tz1090,pins = "uart0_rxd", + "uart0_txd"; + tz1090,function = "perip"; + }; + }; + tft_default: tft { + tft_cfg { + tz1090,pins = "tft"; + tz1090,function = "tft"; + }; + }; + }; + + uart@02004b00 { + pinctrl-names = "default"; + pinctrl-0 = <&uart0_default>; + }; diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig index e01976fb117..acdaa08b325 100644 --- a/drivers/pinctrl/Kconfig +++ b/drivers/pinctrl/Kconfig @@ -212,6 +212,12 @@ config PINCTRL_TEGRA114 bool select PINCTRL_TEGRA +config PINCTRL_TZ1090 + bool "Toumaz Xenif TZ1090 pin control driver" + depends on SOC_TZ1090 + select PINMUX + select GENERIC_PINCONF + config PINCTRL_U300 bool "U300 pin controller driver" depends on ARCH_U300 diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile index 9031afddb9a..37ff29e1bba 100644 --- a/drivers/pinctrl/Makefile +++ b/drivers/pinctrl/Makefile @@ -40,6 +40,7 @@ obj-$(CONFIG_PINCTRL_TEGRA) += pinctrl-tegra.o obj-$(CONFIG_PINCTRL_TEGRA20) += pinctrl-tegra20.o obj-$(CONFIG_PINCTRL_TEGRA30) += pinctrl-tegra30.o obj-$(CONFIG_PINCTRL_TEGRA114) += pinctrl-tegra114.o +obj-$(CONFIG_PINCTRL_TZ1090) += pinctrl-tz1090.o obj-$(CONFIG_PINCTRL_U300) += pinctrl-u300.o obj-$(CONFIG_PINCTRL_COH901) += pinctrl-coh901.o obj-$(CONFIG_PINCTRL_SAMSUNG) += pinctrl-samsung.o diff --git a/drivers/pinctrl/pinctrl-tz1090.c b/drivers/pinctrl/pinctrl-tz1090.c new file mode 100644 index 00000000000..02ff3a23816 --- /dev/null +++ b/drivers/pinctrl/pinctrl-tz1090.c @@ -0,0 +1,2077 @@ +/* + * Pinctrl driver for the Toumaz Xenif TZ1090 SoC + * + * Copyright (c) 2013, Imagination Technologies Ltd. + * + * Derived from Tegra code: + * Copyright (c) 2011-2012, NVIDIA CORPORATION. All rights reserved. + * + * Derived from code: + * Copyright (C) 2010 Google, Inc. + * Copyright (C) 2010 NVIDIA Corporation + * Copyright (C) 2009-2011 ST-Ericsson AB + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + */ + +#include <linux/bitops.h> +#include <linux/io.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/platform_device.h> +#include <linux/pinctrl/machine.h> +#include <linux/pinctrl/pinconf-generic.h> +#include <linux/pinctrl/pinctrl.h> +#include <linux/pinctrl/pinmux.h> +#include <linux/slab.h> +#include <linux/spinlock.h> + +/* + * The registers may be shared with other threads/cores, so we need to use the + * metag global lock2 for atomicity. + */ +#include <asm/global_lock.h> + +#include "core.h" +#include "pinconf.h" + +/* Register offsets from bank base address */ +#define REG_PINCTRL_SELECT 0x10 +#define REG_PINCTRL_SCHMITT 0x90 +#define REG_PINCTRL_PU_PD 0xa0 +#define REG_PINCTRL_SR 0xc0 +#define REG_PINCTRL_DR 0xd0 +#define REG_PINCTRL_IF_CTL 0xe0 + +/* REG_PINCTRL_PU_PD field values */ +#define REG_PU_PD_TRISTATE 0 +#define REG_PU_PD_UP 1 +#define REG_PU_PD_DOWN 2 +#define REG_PU_PD_REPEATER 3 + +/* REG_PINCTRL_DR field values */ +#define REG_DR_2mA 0 +#define REG_DR_4mA 1 +#define REG_DR_8mA 2 +#define REG_DR_12mA 3 + +/** + * struct tz1090_function - TZ1090 pinctrl mux function + * @name: The name of the function, exported to pinctrl core. + * @groups: An array of pin groups that may select this function. + * @ngroups: The number of entries in @groups. + */ +struct tz1090_function { + const char *name; + const char * const *groups; + unsigned int ngroups; +}; + +/** + * struct tz1090_muxdesc - TZ1090 individual mux description + * @funcs: Function for each mux value. + * @reg: Mux register offset. 0 if unsupported. + * @bit: Mux register bit. 0 if unsupported. + * @width: Mux field width. 0 if unsupported. + * + * A representation of a group of signals (possibly just one signal) in the + * TZ1090 which can be muxed to a set of functions or sub muxes. + */ +struct tz1090_muxdesc { + int funcs[5]; + u16 reg; + u8 bit; + u8 width; +}; + +/** + * struct tz1090_pingroup - TZ1090 pin group + * @name: Name of pin group. + * @pins: Array of pin numbers in this pin group. + * @npins: Number of pins in this pin group. + * @mux: Top level mux. + * @drv: Drive control supported, 0 if unsupported. + * This means Schmitt, Slew, and Drive strength. + * @slw_bit: Slew register bit. 0 if unsupported. + * The same bit is used for Schmitt, and Drive (*2). + * @func: Currently muxed function. + * @func_count: Number of pins using current mux function. + * + * A representation of a group of pins (possibly just one pin) in the TZ1090 + * pin controller. Each group allows some parameter or parameters to be + * configured. The most common is mux function selection. + */ +struct tz1090_pingroup { + const char *name; + const unsigned int *pins; + unsigned int npins; + struct tz1090_muxdesc mux; + + bool drv; + u8 slw_bit; + + int func; + unsigned int func_count; +}; + +/* + * Most pins affected by the pinmux can also be GPIOs. Define these first. + * These must match how the GPIO driver names/numbers its pins. + */ + +enum tz1090_pin { + /* GPIO pins */ + TZ1090_PIN_SDIO_CLK, + TZ1090_PIN_SDIO_CMD, + TZ1090_PIN_SDIO_D0, + TZ1090_PIN_SDIO_D1, + TZ1090_PIN_SDIO_D2, + TZ1090_PIN_SDIO_D3, + TZ1090_PIN_SDH_CD, + TZ1090_PIN_SDH_WP, + TZ1090_PIN_SPI0_MCLK, + TZ1090_PIN_SPI0_CS0, + TZ1090_PIN_SPI0_CS1, + TZ1090_PIN_SPI0_CS2, + TZ1090_PIN_SPI0_DOUT, + TZ1090_PIN_SPI0_DIN, + TZ1090_PIN_SPI1_MCLK, + TZ1090_PIN_SPI1_CS0, + TZ1090_PIN_SPI1_CS1, + TZ1090_PIN_SPI1_CS2, + TZ1090_PIN_SPI1_DOUT, + TZ1090_PIN_SPI1_DIN, + TZ1090_PIN_UART0_RXD, + TZ1090_PIN_UART0_TXD, + TZ1090_PIN_UART0_CTS, + TZ1090_PIN_UART0_RTS, + TZ1090_PIN_UART1_RXD, + TZ1090_PIN_UART1_TXD, + TZ1090_PIN_SCB0_SDAT, + TZ1090_PIN_SCB0_SCLK, + TZ1090_PIN_SCB1_SDAT, + TZ1090_PIN_SCB1_SCLK, + TZ1090_PIN_SCB2_SDAT, + TZ1090_PIN_SCB2_SCLK, + TZ1090_PIN_I2S_MCLK, + TZ1090_PIN_I2S_BCLK_OUT, + TZ1090_PIN_I2S_LRCLK_OUT, + TZ1090_PIN_I2S_DOUT0, + TZ1090_PIN_I2S_DOUT1, + TZ1090_PIN_I2S_DOUT2, + TZ1090_PIN_I2S_DIN, + TZ1090_PIN_PDM_A, + TZ1090_PIN_PDM_B, + TZ1090_PIN_PDM_C, + TZ1090_PIN_PDM_D, + TZ1090_PIN_TFT_RED0, + TZ1090_PIN_TFT_RED1, + TZ1090_PIN_TFT_RED2, + TZ1090_PIN_TFT_RED3, + TZ1090_PIN_TFT_RED4, + TZ1090_PIN_TFT_RED5, + TZ1090_PIN_TFT_RED6, + TZ1090_PIN_TFT_RED7, + TZ1090_PIN_TFT_GREEN0, + TZ1090_PIN_TFT_GREEN1, + TZ1090_PIN_TFT_GREEN2, + TZ1090_PIN_TFT_GREEN3, + TZ1090_PIN_TFT_GREEN4, + TZ1090_PIN_TFT_GREEN5, + TZ1090_PIN_TFT_GREEN6, + TZ1090_PIN_TFT_GREEN7, + TZ1090_PIN_TFT_BLUE0, + TZ1090_PIN_TFT_BLUE1, + TZ1090_PIN_TFT_BLUE2, + TZ1090_PIN_TFT_BLUE3, + TZ1090_PIN_TFT_BLUE4, + TZ1090_PIN_TFT_BLUE5, + TZ1090_PIN_TFT_BLUE6, + TZ1090_PIN_TFT_BLUE7, + TZ1090_PIN_TFT_VDDEN_GD, + TZ1090_PIN_TFT_PANELCLK, + TZ1090_PIN_TFT_BLANK_LS, + TZ1090_PIN_TFT_VSYNC_NS, + TZ1090_PIN_TFT_HSYNC_NR, + TZ1090_PIN_TFT_VD12ACB, + TZ1090_PIN_TFT_PWRSAVE, + TZ1090_PIN_TX_ON, + TZ1090_PIN_RX_ON, + TZ1090_PIN_PLL_ON, + TZ1090_PIN_PA_ON, + TZ1090_PIN_RX_HP, + TZ1090_PIN_GAIN0, + TZ1090_PIN_GAIN1, + TZ1090_PIN_GAIN2, + TZ1090_PIN_GAIN3, + TZ1090_PIN_GAIN4, + TZ1090_PIN_GAIN5, + TZ1090_PIN_GAIN6, + TZ1090_PIN_GAIN7, + TZ1090_PIN_ANT_SEL0, + TZ1090_PIN_ANT_SEL1, + TZ1090_PIN_SDH_CLK_IN, + + /* Non-GPIO pins */ + TZ1090_PIN_TCK, + TZ1090_PIN_TRST, + TZ1090_PIN_TDI, + TZ1090_PIN_TDO, + TZ1090_PIN_TMS, + TZ1090_PIN_CLK_OUT0, + TZ1090_PIN_CLK_OUT1, + + NUM_GPIOS = TZ1090_PIN_TCK, +}; + +/* Pin names */ + +static const struct pinctrl_pin_desc tz1090_pins[] = { + /* GPIO pins */ + PINCTRL_PIN(TZ1090_PIN_SDIO_CLK, "sdio_clk"), + PINCTRL_PIN(TZ1090_PIN_SDIO_CMD, "sdio_cmd"), + PINCTRL_PIN(TZ1090_PIN_SDIO_D0, "sdio_d0"), + PINCTRL_PIN(TZ1090_PIN_SDIO_D1, "sdio_d1"), + PINCTRL_PIN(TZ1090_PIN_SDIO_D2, "sdio_d2"), + PINCTRL_PIN(TZ1090_PIN_SDIO_D3, "sdio_d3"), + PINCTRL_PIN(TZ1090_PIN_SDH_CD, "sdh_cd"), + PINCTRL_PIN(TZ1090_PIN_SDH_WP, "sdh_wp"), + PINCTRL_PIN(TZ1090_PIN_SPI0_MCLK, "spi0_mclk"), + PINCTRL_PIN(TZ1090_PIN_SPI0_CS0, "spi0_cs0"), + PINCTRL_PIN(TZ1090_PIN_SPI0_CS1, "spi0_cs1"), + PINCTRL_PIN(TZ1090_PIN_SPI0_CS2, "spi0_cs2"), + PINCTRL_PIN(TZ1090_PIN_SPI0_DOUT, "spi0_dout"), + PINCTRL_PIN(TZ1090_PIN_SPI0_DIN, "spi0_din"), + PINCTRL_PIN(TZ1090_PIN_SPI1_MCLK, "spi1_mclk"), + PINCTRL_PIN(TZ1090_PIN_SPI1_CS0, "spi1_cs0"), + PINCTRL_PIN(TZ1090_PIN_SPI1_CS1, "spi1_cs1"), + PINCTRL_PIN(TZ1090_PIN_SPI1_CS2, "spi1_cs2"), + PINCTRL_PIN(TZ1090_PIN_SPI1_DOUT, "spi1_dout"), + PINCTRL_PIN(TZ1090_PIN_SPI1_DIN, "spi1_din"), + PINCTRL_PIN(TZ1090_PIN_UART0_RXD, "uart0_rxd"), + PINCTRL_PIN(TZ1090_PIN_UART0_TXD, "uart0_txd"), + PINCTRL_PIN(TZ1090_PIN_UART0_CTS, "uart0_cts"), + PINCTRL_PIN(TZ1090_PIN_UART0_RTS, "uart0_rts"), + PINCTRL_PIN(TZ1090_PIN_UART1_RXD, "uart1_rxd"), + PINCTRL_PIN(TZ1090_PIN_UART1_TXD, "uart1_txd"), + PINCTRL_PIN(TZ1090_PIN_SCB0_SDAT, "scb0_sdat"), + PINCTRL_PIN(TZ1090_PIN_SCB0_SCLK, "scb0_sclk"), + PINCTRL_PIN(TZ1090_PIN_SCB1_SDAT, "scb1_sdat"), + PINCTRL_PIN(TZ1090_PIN_SCB1_SCLK, "scb1_sclk"), + PINCTRL_PIN(TZ1090_PIN_SCB2_SDAT, "scb2_sdat"), + PINCTRL_PIN(TZ1090_PIN_SCB2_SCLK, "scb2_sclk"), + PINCTRL_PIN(TZ1090_PIN_I2S_MCLK, "i2s_mclk"), + PINCTRL_PIN(TZ1090_PIN_I2S_BCLK_OUT, "i2s_bclk_out"), + PINCTRL_PIN(TZ1090_PIN_I2S_LRCLK_OUT, "i2s_lrclk_out"), + PINCTRL_PIN(TZ1090_PIN_I2S_DOUT0, "i2s_dout0"), + PINCTRL_PIN(TZ1090_PIN_I2S_DOUT1, "i2s_dout1"), + PINCTRL_PIN(TZ1090_PIN_I2S_DOUT2, "i2s_dout2"), + PINCTRL_PIN(TZ1090_PIN_I2S_DIN, "i2s_din"), + PINCTRL_PIN(TZ1090_PIN_PDM_A, "pdm_a"), + PINCTRL_PIN(TZ1090_PIN_PDM_B, "pdm_b"), + PINCTRL_PIN(TZ1090_PIN_PDM_C, "pdm_c"), + PINCTRL_PIN(TZ1090_PIN_PDM_D, "pdm_d"), + PINCTRL_PIN(TZ1090_PIN_TFT_RED0, "tft_red0"), + PINCTRL_PIN(TZ1090_PIN_TFT_RED1, "tft_red1"), + PINCTRL_PIN(TZ1090_PIN_TFT_RED2, "tft_red2"), + PINCTRL_PIN(TZ1090_PIN_TFT_RED3, "tft_red3"), + PINCTRL_PIN(TZ1090_PIN_TFT_RED4, "tft_red4"), + PINCTRL_PIN(TZ1090_PIN_TFT_RED5, "tft_red5"), + PINCTRL_PIN(TZ1090_PIN_TFT_RED6, "tft_red6"), + PINCTRL_PIN(TZ1090_PIN_TFT_RED7, "tft_red7"), + PINCTRL_PIN(TZ1090_PIN_TFT_GREEN0, "tft_green0"), + PINCTRL_PIN(TZ1090_PIN_TFT_GREEN1, "tft_green1"), + PINCTRL_PIN(TZ1090_PIN_TFT_GREEN2, "tft_green2"), + PINCTRL_PIN(TZ1090_PIN_TFT_GREEN3, "tft_green3"), + PINCTRL_PIN(TZ1090_PIN_TFT_GREEN4, "tft_green4"), + PINCTRL_PIN(TZ1090_PIN_TFT_GREEN5, "tft_green5"), + PINCTRL_PIN(TZ1090_PIN_TFT_GREEN6, "tft_green6"), + PINCTRL_PIN(TZ1090_PIN_TFT_GREEN7, "tft_green7"), + PINCTRL_PIN(TZ1090_PIN_TFT_BLUE0, "tft_blue0"), + PINCTRL_PIN(TZ1090_PIN_TFT_BLUE1, "tft_blue1"), + PINCTRL_PIN(TZ1090_PIN_TFT_BLUE2, "tft_blue2"), + PINCTRL_PIN(TZ1090_PIN_TFT_BLUE3, "tft_blue3"), + PINCTRL_PIN(TZ1090_PIN_TFT_BLUE4, "tft_blue4"), + PINCTRL_PIN(TZ1090_PIN_TFT_BLUE5, "tft_blue5"), + PINCTRL_PIN(TZ1090_PIN_TFT_BLUE6, "tft_blue6"), + PINCTRL_PIN(TZ1090_PIN_TFT_BLUE7, "tft_blue7"), + PINCTRL_PIN(TZ1090_PIN_TFT_VDDEN_GD, "tft_vdden_gd"), + PINCTRL_PIN(TZ1090_PIN_TFT_PANELCLK, "tft_panelclk"), + PINCTRL_PIN(TZ1090_PIN_TFT_BLANK_LS, "tft_blank_ls"), + PINCTRL_PIN(TZ1090_PIN_TFT_VSYNC_NS, "tft_vsync_ns"), + PINCTRL_PIN(TZ1090_PIN_TFT_HSYNC_NR, "tft_hsync_nr"), + PINCTRL_PIN(TZ1090_PIN_TFT_VD12ACB, "tft_vd12acb"), + PINCTRL_PIN(TZ1090_PIN_TFT_PWRSAVE, "tft_pwrsave"), + PINCTRL_PIN(TZ1090_PIN_TX_ON, "tx_on"), + PINCTRL_PIN(TZ1090_PIN_RX_ON, "rx_on"), + PINCTRL_PIN(TZ1090_PIN_PLL_ON, "pll_on"), + PINCTRL_PIN(TZ1090_PIN_PA_ON, "pa_on"), + PINCTRL_PIN(TZ1090_PIN_RX_HP, "rx_hp"), + PINCTRL_PIN(TZ1090_PIN_GAIN0, "gain0"), + PINCTRL_PIN(TZ1090_PIN_GAIN1, "gain1"), + PINCTRL_PIN(TZ1090_PIN_GAIN2, "gain2"), + PINCTRL_PIN(TZ1090_PIN_GAIN3, "gain3"), + PINCTRL_PIN(TZ1090_PIN_GAIN4, "gain4"), + PINCTRL_PIN(TZ1090_PIN_GAIN5, "gain5"), + PINCTRL_PIN(TZ1090_PIN_GAIN6, "gain6"), + PINCTRL_PIN(TZ1090_PIN_GAIN7, "gain7"), + PINCTRL_PIN(TZ1090_PIN_ANT_SEL0, "ant_sel0"), + PINCTRL_PIN(TZ1090_PIN_ANT_SEL1, "ant_sel1"), + PINCTRL_PIN(TZ1090_PIN_SDH_CLK_IN, "sdh_clk_in"), + + /* Non-GPIO pins */ + PINCTRL_PIN(TZ1090_PIN_TCK, "tck"), + PINCTRL_PIN(TZ1090_PIN_TRST, "trst"), + PINCTRL_PIN(TZ1090_PIN_TDI, "tdi"), + PINCTRL_PIN(TZ1090_PIN_TDO, "tdo"), + PINCTRL_PIN(TZ1090_PIN_TMS, "tms"), + PINCTRL_PIN(TZ1090_PIN_CLK_OUT0, "clk_out0"), + PINCTRL_PIN(TZ1090_PIN_CLK_OUT1, "clk_out1"), +}; + +/* Pins in each pin group */ + +static const unsigned int spi1_cs2_pins[] = { + TZ1090_PIN_SPI1_CS2, +}; + +static const unsigned int pdm_d_pins[] = { + TZ1090_PIN_PDM_D, +}; + +static const unsigned int tft_pins[] = { + TZ1090_PIN_TFT_RED0, + TZ1090_PIN_TFT_RED1, + TZ1090_PIN_TFT_RED2, + TZ1090_PIN_TFT_RED3, + TZ1090_PIN_TFT_RED4, + TZ1090_PIN_TFT_RED5, + TZ1090_PIN_TFT_RED6, + TZ1090_PIN_TFT_RED7, + TZ1090_PIN_TFT_GREEN0, + TZ1090_PIN_TFT_GREEN1, + TZ1090_PIN_TFT_GREEN2, + TZ1090_PIN_TFT_GREEN3, + TZ1090_PIN_TFT_GREEN4, + TZ1090_PIN_TFT_GREEN5, + TZ1090_PIN_TFT_GREEN6, + TZ1090_PIN_TFT_GREEN7, + TZ1090_PIN_TFT_BLUE0, + TZ1090_PIN_TFT_BLUE1, + TZ1090_PIN_TFT_BLUE2, + TZ1090_PIN_TFT_BLUE3, + TZ1090_PIN_TFT_BLUE4, + TZ1090_PIN_TFT_BLUE5, + TZ1090_PIN_TFT_BLUE6, + TZ1090_PIN_TFT_BLUE7, + TZ1090_PIN_TFT_VDDEN_GD, + TZ1090_PIN_TFT_PANELCLK, + TZ1090_PIN_TFT_BLANK_LS, + TZ1090_PIN_TFT_VSYNC_NS, + TZ1090_PIN_TFT_HSYNC_NR, + TZ1090_PIN_TFT_VD12ACB, + TZ1090_PIN_TFT_PWRSAVE, +}; + +static const unsigned int afe_pins[] = { + TZ1090_PIN_TX_ON, + TZ1090_PIN_RX_ON, + TZ1090_PIN_PLL_ON, + TZ1090_PIN_PA_ON, + TZ1090_PIN_RX_HP, + TZ1090_PIN_ANT_SEL0, + TZ1090_PIN_ANT_SEL1, + TZ1090_PIN_GAIN0, + TZ1090_PIN_GAIN1, + TZ1090_PIN_GAIN2, + TZ1090_PIN_GAIN3, + TZ1090_PIN_GAIN4, + TZ1090_PIN_GAIN5, + TZ1090_PIN_GAIN6, + TZ1090_PIN_GAIN7, +}; + +static const unsigned int sdio_pins[] = { + TZ1090_PIN_SDIO_CLK, + TZ1090_PIN_SDIO_CMD, + TZ1090_PIN_SDIO_D0, + TZ1090_PIN_SDIO_D1, + TZ1090_PIN_SDIO_D2, + TZ1090_PIN_SDIO_D3, +}; + +static const unsigned int sdh_pins[] = { + TZ1090_PIN_SDH_CD, + TZ1090_PIN_SDH_WP, + TZ1090_PIN_SDH_CLK_IN, +}; + +static const unsigned int spi0_pins[] = { + TZ1090_PIN_SPI0_MCLK, + TZ1090_PIN_SPI0_CS0, + TZ1090_PIN_SPI0_CS1, + TZ1090_PIN_SPI0_CS2, + TZ1090_PIN_SPI0_DOUT, + TZ1090_PIN_SPI0_DIN, +}; + +static const unsigned int spi1_pins[] = { + TZ1090_PIN_SPI1_MCLK, + TZ1090_PIN_SPI1_CS0, + TZ1090_PIN_SPI1_CS1, + TZ1090_PIN_SPI1_CS2, + TZ1090_PIN_SPI1_DOUT, + TZ1090_PIN_SPI1_DIN, +}; + +static const unsigned int uart0_pins[] = { + TZ1090_PIN_UART0_RTS, + TZ1090_PIN_UART0_CTS, + TZ1090_PIN_UART0_TXD, + TZ1090_PIN_UART0_RXD, +}; + +static const unsigned int uart1_pins[] = { + TZ1090_PIN_UART1_TXD, + TZ1090_PIN_UART1_RXD, +}; + +static const unsigned int uart_pins[] = { + TZ1090_PIN_UART1_TXD, + TZ1090_PIN_UART1_RXD, + TZ1090_PIN_UART0_RTS, + TZ1090_PIN_UART0_CTS, + TZ1090_PIN_UART0_TXD, + TZ1090_PIN_UART0_RXD, +}; + +static const unsigned int scb0_pins[] = { + TZ1090_PIN_SCB0_SDAT, + TZ1090_PIN_SCB0_SCLK, +}; + +static const unsigned int scb1_pins[] = { + TZ1090_PIN_SCB1_SDAT, + TZ1090_PIN_SCB1_SCLK, +}; + +static const unsigned int scb2_pins[] = { + TZ1090_PIN_SCB2_SDAT, + TZ1090_PIN_SCB2_SCLK, +}; + +static const unsigned int i2s_pins[] = { + TZ1090_PIN_I2S_MCLK, + TZ1090_PIN_I2S_BCLK_OUT, + TZ1090_PIN_I2S_LRCLK_OUT, + TZ1090_PIN_I2S_DOUT0, + TZ1090_PIN_I2S_DOUT1, + TZ1090_PIN_I2S_DOUT2, + TZ1090_PIN_I2S_DIN, +}; + +static const unsigned int jtag_pins[] = { + TZ1090_PIN_TCK, + TZ1090_PIN_TRST, + TZ1090_PIN_TDI, + TZ1090_PIN_TDO, + TZ1090_PIN_TMS, +}; + +/* Pins in each drive pin group */ + +static const unsigned int drive_sdio_pins[] = { + TZ1090_PIN_SDIO_CLK, + TZ1090_PIN_SDIO_CMD, + TZ1090_PIN_SDIO_D0, + TZ1090_PIN_SDIO_D1, + TZ1090_PIN_SDIO_D2, + TZ1090_PIN_SDIO_D3, + TZ1090_PIN_SDH_WP, + TZ1090_PIN_SDH_CD, + TZ1090_PIN_SDH_CLK_IN, +}; + +static const unsigned int drive_i2s_pins[] = { + TZ1090_PIN_CLK_OUT1, + TZ1090_PIN_I2S_DIN, + TZ1090_PIN_I2S_DOUT0, + TZ1090_PIN_I2S_DOUT1, + TZ1090_PIN_I2S_DOUT2, + TZ1090_PIN_I2S_LRCLK_OUT, + TZ1090_PIN_I2S_BCLK_OUT, + TZ1090_PIN_I2S_MCLK, +}; + +static const unsigned int drive_scb0_pins[] = { + TZ1090_PIN_SCB0_SCLK, + TZ1090_PIN_SCB0_SDAT, + TZ1090_PIN_PDM_D, + TZ1090_PIN_PDM_C, +}; + +static const unsigned int drive_pdm_pins[] = { + TZ1090_PIN_CLK_OUT0, + TZ1090_PIN_PDM_B, + TZ1090_PIN_PDM_A, +}; + +/* Pin groups each function can be muxed to */ + +/* + * The magic "perip" function allows otherwise non-muxing pins to be enabled in + * peripheral mode. + */ +static const char * const perip_groups[] = { + /* non-muxing convenient gpio pingroups */ + "uart", + "uart0", + "uart1", + "spi0", + "spi1", + "scb0", + "scb1", + "scb2", + "i2s", + /* individual pins not part of a pin mux group */ + "spi0_mclk", + "spi0_cs0", + "spi0_cs1", + "spi0_cs2", + "spi0_dout", + "spi0_din", + "spi1_mclk", + "spi1_cs0", + "spi1_cs1", + "spi1_dout", + "spi1_din", + "uart0_rxd", + "uart0_txd", + "uart0_cts", + "uart0_rts", + "uart1_rxd", + "uart1_txd", + "scb0_sdat", + "scb0_sclk", + "scb1_sdat", + "scb1_sclk", + "scb2_sdat", + "scb2_sclk", + "i2s_mclk", + "i2s_bclk_out", + "i2s_lrclk_out", + "i2s_dout0", + "i2s_dout1", + "i2s_dout2", + "i2s_din", + "pdm_a", + "pdm_b", + "pdm_c", +}; + +static const char * const sdh_sdio_groups[] = { + "sdh", + "sdio", + /* sdh pins */ + "sdh_cd", + "sdh_wp", + "sdh_clk_in", + /* sdio pins */ + "sdio_clk", + "sdio_cmd", + "sdio_d0", + "sdio_d1", + "sdio_d2", + "sdio_d3", +}; + +static const char * const spi1_cs2_groups[] = { + "spi1_cs2", +}; + +static const char * const pdm_dac_groups[] = { + "pdm_d", +}; + +static const char * const usb_vbus_groups[] = { + "spi1_cs2", + "pdm_d", +}; + +static const char * const afe_groups[] = { + "afe", + /* afe pins */ + "tx_on", + "rx_on", + "pll_on", + "pa_on", + "rx_hp", + "ant_sel0", + "ant_sel1", + "gain0", + "gain1", + "gain2", + "gain3", + "gain4", + "gain5", + "gain6", + "gain7", +}; + +static const char * const tft_groups[] = { + "tft", + /* tft pins */ + "tft_red0", + "tft_red1", + "tft_red2", + "tft_red3", + "tft_red4", + "tft_red5", + "tft_red6", + "tft_red7", + "tft_green0", + "tft_green1", + "tft_green2", + "tft_green3", + "tft_green4", + "tft_green5", + "tft_green6", + "tft_green7", + "tft_blue0", + "tft_blue1", + "tft_blue2", + "tft_blue3", + "tft_blue4", + "tft_blue5", + "tft_blue6", + "tft_blue7", + "tft_vdden_gd", + "tft_panelclk", + "tft_blank_ls", + "tft_vsync_ns", + "tft_hsync_nr", + "tft_vd12acb", + "tft_pwrsave", +}; + +/* Mux functions that can be used by a mux */ + +enum tz1090_mux { + /* internal placeholder */ + TZ1090_MUX_NA = -1, + /* magic per-non-muxing-GPIO-pin peripheral mode mux */ + TZ1090_MUX_PERIP, + /* SDH/SDIO mux */ + TZ1090_MUX_SDH, + TZ1090_MUX_SDIO, + /* USB_VBUS muxes */ + TZ1090_MUX_SPI1_CS2, + TZ1090_MUX_PDM_DAC, + TZ1090_MUX_USB_VBUS, + /* AFE mux */ + TZ1090_MUX_AFE, + TZ1090_MUX_TS_OUT_0, + /* EXT_DAC mux */ + TZ1090_MUX_DAC, + TZ1090_MUX_NOT_IQADC_STB, + TZ1090_MUX_IQDAC_STB, + /* TFT mux */ + TZ1090_MUX_TFT, + TZ1090_MUX_EXT_DAC, + TZ1090_MUX_TS_OUT_1, + TZ1090_MUX_LCD_TRACE, + TZ1090_MUX_PHY_RINGOSC, +}; + +#define FUNCTION(mux, fname, group) \ + [(TZ1090_MUX_ ## mux)] = { \ + .name = #fname, \ + .groups = group##_groups, \ + .ngroups = ARRAY_SIZE(group##_groups), \ + } +/* For intermediate functions with submuxes */ +#define NULL_FUNCTION(mux, fname) \ + [(TZ1090_MUX_ ## mux)] = { \ + .name = #fname, \ + } + +/* Must correlate with enum tz1090_mux */ +static const struct tz1090_function tz1090_functions[] = { + /* FUNCTION function name pingroups */ + FUNCTION(PERIP, perip, perip), + FUNCTION(SDH, sdh, sdh_sdio), + FUNCTION(SDIO, sdio, sdh_sdio), + FUNCTION(SPI1_CS2, spi1_cs2, spi1_cs2), + FUNCTION(PDM_DAC, pdm_dac, pdm_dac), + FUNCTION(USB_VBUS, usb_vbus, usb_vbus), + FUNCTION(AFE, afe, afe), + FUNCTION(TS_OUT_0, ts_out_0, afe), + FUNCTION(DAC, ext_dac, tft), + FUNCTION(NOT_IQADC_STB, not_iqadc_stb, tft), + FUNCTION(IQDAC_STB, iqdac_stb, tft), + FUNCTION(TFT, tft, tft), + NULL_FUNCTION(EXT_DAC, _ext_dac), + FUNCTION(TS_OUT_1, ts_out_1, tft), + FUNCTION(LCD_TRACE, lcd_trace, tft), + FUNCTION(PHY_RINGOSC, phy_ringosc, tft), +}; + +/* Sub muxes */ + +/** + * MUX() - Initialise a mux description. + * @f0: Function 0 (TZ1090_MUX_ is prepended, NA for none) + * @f1: Function 1 (TZ1090_MUX_ is prepended, NA for none) + * @f2: Function 2 (TZ1090_MUX_ is prepended, NA for none) + * @f3: Function 3 (TZ1090_MUX_ is prepended, NA for none) + * @f4: Function 4 (TZ1090_MUX_ is prepended, NA for none) + * @mux_r: Mux register (REG_PINCTRL_ is prepended) + * @mux_b: Bit number in register that the mux field begins + * @mux_w: Width of mux field in register + */ +#define MUX(f0, f1, f2, f3, f4, mux_r, mux_b, mux_w) \ + { \ + .funcs = { \ + TZ1090_MUX_ ## f0, \ + TZ1090_MUX_ ## f1, \ + TZ1090_MUX_ ## f2, \ + TZ1090_MUX_ ## f3, \ + TZ1090_MUX_ ## f4, \ + }, \ + .reg = (REG_PINCTRL_ ## mux_r), \ + .bit = (mux_b), \ + .width = (mux_w), \ + } + +/** + * DEFINE_SUBMUX() - Defines a submux description separate from a pin group. + * @mux: Mux name (_submux is appended) + * @f0: Function 0 (TZ1090_MUX_ is prepended, NA for none) + * @f1: Function 1 (TZ1090_MUX_ is prepended, NA for none) + * @f2: Function 2 (TZ1090_MUX_ is prepended, NA for none) + * @f3: Function 3 (TZ1090_MUX_ is prepended, NA for none) + * @f4: Function 4 (TZ1090_MUX_ is prepended, NA for none) + * @mux_r: Mux register (REG_PINCTRL_ is prepended) + * @mux_b: Bit number in register that the mux field begins + * @mux_w: Width of mux field in register + * + * A sub mux is a nested mux that can be bound to a magic function number used + * by another mux description. For example value 4 of the top level mux might + * correspond to a function which has a submux pointed to in tz1090_submux[]. + * The outer mux can then take on any function in the top level mux or the + * submux, and if a submux function is chosen both muxes are updated to route + * the signal from the submux. + * + * The submux can be defined with DEFINE_SUBMUX and pointed to from + * tz1090_submux[] using SUBMUX. + */ +#define DEFINE_SUBMUX(mux, f0, f1, f2, f3, f4, mux_r, mux_b, mux_w) \ + static struct tz1090_muxdesc mux ## _submux = \ + MUX(f0, f1, f2, f3, f4, mux_r, mux_b, mux_w) + +/** + * SUBMUX() - Link a submux to a function number. + * @f: Function name (TZ1090_MUX_ is prepended) + * @submux: Submux name (_submux is appended) + * + * For use in tz1090_submux[] initialisation to link an intermediate function + * number to a particular submux description. It indicates that when the + * function is chosen the signal is connected to the submux. + */ +#define SUBMUX(f, submux) [(TZ1090_MUX_ ## f)] = &(submux ## _submux) + +/** + * MUX_PG() - Initialise a pin group with mux control + * @pg_name: Pin group name (stringified, _pins appended to get pins array) + * @f0: Function 0 (TZ1090_MUX_ is prepended, NA for none) + * @f1: Function 1 (TZ1090_MUX_ is prepended, NA for none) + * @f2: Function 2 (TZ1090_MUX_ is prepended, NA for none) + * @f3: Function 3 (TZ1090_MUX_ is prepended, NA for none) + * @f4: Function 4 (TZ1090_MUX_ is prepended, NA for none) + * @mux_r: Mux register (REG_PINCTRL_ is prepended) + * @mux_b: Bit number in register that the mux field begins + * @mux_w: Width of mux field in register + */ +#define MUX_PG(pg_name, f0, f1, f2, f3, f4, \ + mux_r, mux_b, mux_w) \ + { \ + .name = #pg_name, \ + .pins = pg_name##_pins, \ + .npins = ARRAY_SIZE(pg_name##_pins), \ + .mux = MUX(f0, f1, f2, f3, f4, \ + mux_r, mux_b, mux_w), \ + } + +/** + * SIMPLE_PG() - Initialise a simple convenience pin group + * @pg_name: Pin group name (stringified, _pins appended to get pins array) + * + * A simple pin group is simply used for binding pins together so they can be + * referred to by a single name instead of having to list every pin + * individually. + */ +#define SIMPLE_PG(pg_name) \ + { \ + .name = #pg_name, \ + .pins = pg_name##_pins, \ + .npins = ARRAY_SIZE(pg_name##_pins), \ + } + +/** |